Machine for ornamenting glass.



APPLICATION FILED 1AN.19|1915.

Patented Oot. 26, MM5.

2 SHEETS-SHEET l.

INVENTOR WITNESSES l vvn-N Essi-:s

l. STOTT.

MACHINE FOR ORNAMENTING GLASS.

APPLICATION HLED 1AN.19,1915.

Ll@ Patented Oat. 26, 1915.

2 SHEETS-SHEET 2- ATTORNEY tu'firt l, wenn@ mi. it t la it li lli ltJAMES STCTT, PHILADELPHA, FENNSYLYJ'ANIL.

MAHINE FOR ORNMENTING GLASS.,

Specification of Letters Patent.

lratenterl @et 2G, lilith,

Application led January' 19, 1915. Serial No. 3,12,

mechanical means for conveniently holding,r

and controlling a glass article upon which ornamentation is to be groundor cut, and also for controlling the cutting means whereby accuracy issecured in the design being cut.

More particularly, my objectv is to provide ornamentation on cut glassarticles in the form oi" grooves having ll-shaped cross section, and tocross such cuts in a manner to produce prismatic effects, and toaccomplish these results with great accuracy and in a rapid manner.

By'my improved apparatus l am enabled to control the glass article aswell as the cuttiiugr tools, so that great accuracy and uniormity in thecutting may be secured; and moreover, the operation of the cutting toolmay be brought into various relations with the article to be cut so asto cross or otherwise associate the successive cuts to produce the mostartistic eiiects. Furthermore, by employing a plurality of cuttingdevices about the article to be cut the time consumed may be reduced toone eighth or less of the time which would be required where a singletool 'was employed or Where the cutting was done by hand operation.

My object is also to provide a machine in which the parts are soassembled and cooperatively arranged that a large number of machines maybe operated under the control ci a single attendant, each machinecutting the same design upon a separate piece of glassware, all of whichtends to greatly cheapcn the cost of production as well asl improvingthe accuracy and appearance of the linished article.

With the above and other objects in view, the nature of which will morefully appear hereinafter, the invention consists in the novelconstruction, combination and arrange ments of parts as hereinafter morefully described, and moreparticularly deined in the claims.

Referring to the drawings: Figure 1A is a sectional elevation through aglass cutting machine embodying my improvements; Fig.

2 is a plan view of the saine with a portion broken away; i lig. 3 is anelevation. of a pon tion et the same; Fig. i is an elevation ci one ofthe grinding; wheels showing its connection on the spindle and with partin section; and Figs. 5, 6 and l are elevations illustrating some of theforms of cutting which may be accomplished by the use of my improvedmachine.

2 1s a suitable framework ortable upon lwhich is supported a head 3having radial,

guide grooves i 1n which a plurality ci sliding blocks 5 are adjustahlyguided, said blocks' being furnished with teeth which engage spiralteeth in a rotary disk 6 contained within the head and' rotated means berotated by a hand wheel 9.

The construction past described may be similar 1n general organizationto what is found in lathe chucks, but instead of there being the usualthree jaws l prefer to provide tour or more radially 'sliding' blocks 5.ln the particular illustration li have indiv cated four, but there maysin, eight or more of these blocks ace'zording to size oiA the machineand character oit v worlr to be accomplished. The head 3 is supported ina stationary manner upon the table and at its central portion isprovided with a vertical guideway 10 in which a sleeve 1l journaled andadapted for rotation. upper end ot the sleeve "is provided with a collar12 and the lower end ci' the sleeve is secured to a bevel gear 13. lnthis manner the sleeve is held against vertical movement but is free torotate. Sliding' vertically in the sleeve is a cylindrical plunger l/lhaving at its upper part a stud l5 on which .a rubber work-holder 16 maybe placed and held, said. holder 16 acting to support a tumbler 17 orother article of glassware which is to be inverted and hield in positionduring the cutting operation. The plunger 14 is of greater length thanthe sleeve l1 'and is adapted to slide vertically therein but is heldagainst independent rotation by means of a pin 18 on the sleeveextending" into a vertical slot 19 on the plunger. ln this manner therotation of the sleeve 11 will also rotate the plunger but will notinterfere with the vertical reciprocations ci the Aplunger which may beemployed to bring' the glass article to different positions cielevationto insure cutting by the rotary grinding wheels 20 at differentlongitudinal portions of the article;

lof gearing' 7 and a shaft 8, which latter may (ttl) ice 35 ,rotaryadjustment of the plunger will not raise" or' lower the work ,in`respect to the4 35A i 1,4 and the 4work holder in respect to the Securedto the lower part of the plunger 14 is a screw threaded shaft 21;, saidshaft having an annular groove 22 in which a set screw 23 extends forholding the screw threaded shaft against longitudinal movement inrespect to the plunger, but at the same time permitting the plungerto berotated about the shaft when necessary. If

the plunger 14 is sulhciently heavy toever- Agroove 22 and the screw 23,but to insure positive action I prefer to employ the latter. vScrewed.upon .the screw threaded shaft 21 1s a bevel gear 24,-said bevel gearbeing ournaled in a frame 25 which is bolted to the bottom ofthe head3,- so that while the bevel gear may rotate it cannot move vertically;the result of this is that the rotation ofl the bevel gear Acauses thescrew threaded shaft -to be raised or lowered'and in thatmanner raisesor lowers the plunger grinding wheels 20. To prevent the screw Ithreaded shaft 21 rotating, it may be pro- `,videdwith aparallel guideyrod 26 clamped ,atf27 to, the' saidshaft, the guide shaft' i`working'ft-hroufzdfi an aperture in the frame 25. While I prefer toVuse this connectionbetween the screw threaded shaft 21 and thelplunger14, whereby the plunger may-rotate without rotating the shaft 21so vthat the position of' the grinding wheels, neverthe= less if thescrew .thread ofthe shaft 21 is of very fine pitch the lscrew 23 maybeset up tight to' hold the shaft 2l rigid with the plunger, and in thatmanner dispense with the additional guide 26. That this dispensing withthe guide 26 may beaccomplished, without materially interfering with theaccuracy ofthe cutting effects, would be apparentl when we keep in mind'that there are a plurality of cutters 20 arranged v about the glassarticle to be cut so that the extent of the rotation of the plungerwould l only approximate the are between any successive'eutters sinceeach cutter repeats the operation of the adjacent cutters. In thismanner where there are four cutters or grinding wheels the totalrotation of the plunger would approximate one, fourth of a degrees.

revolution. When there are eight cutters or grinding wheelsthe rotationwould only approximate one eighth of the circumference, or'corresponding to an arc of forty-five If the pitch of the screw threadedy. yshaft 21 is line it is'manifest'that the'turning of the screw.thread in the bevel gear 24 through an arc of forty-five degrees wouldnot materially Vraise or lower the work, and

in most :cases what variation was accomplished in this manner would notbe objectionable. I therefore do not restrict myself to the particularmanner in which the screw threaded shaft 21 is connected with Theplunger 14 and its carrying sleeve 11 is given rotary adjustment bymeans of a bevel pinion 31 secured to a shaft 32, said shaft beingprovided at its outer end withv a ratchet wheel 33 and a. pivoted lever34, having a pawl 35 pivoted to it and engaging the ratchet teeth of thewheel 33. By rocking the lever 34 the shaft 32 may be given a step bystep adjustment; the throw of the lever 34 may be restricted in onedirectionl by the shaft 8 on the head 3 and the pin 36 ,which isadjustably clamped to the table in any suitable manner. As shown it issecured to a plate 37 having a slot- 38 through which a clamping screw39 passes for holding the plate and the pin 36 in l'any particularadjustment to vary the throw of the lever 34. As shown, the lever 34 isdrawn backward by a spring 40 so that whenever it is released it comesback to a normal position. The number of ratchet teethin the wheel 33determines the rotary 'adjustment of the sleeve and the plunger,

and this wheel 33 may be substituted by other wheels of a similarcharacter but having ratchet teeth of less or greater pitch according tothe character of the work to be done.l For di erent pitches of teeth thepiny 36 is adjusted so that the throw of the lever 34 will be exactlyright for each degreeof rotary adjustment required to be given to thework. While I have shown a suitable means for accomplishing this rotaryadjustment,^I do not restrict myself in any manner to the particularmeansillustrated as these may be modified in various ways, as

will be readily understood. It is desirable, however, that the precisionof the rotary adjustment shall be accurately made because.

in the series of cuttings which are to be accomplished by the pluralityof rota ry grinding wheels the spacing of the cuts must be uniformlydistributed about the circumference.

Considering now the grinding wheels and the means of operation, each ofthe blocks 5 is provided at the upper part with an inclined tableportion 41, the incline being upward from the perimeter' of the headtoward risasaa the work holder. livoted at 42 upon'each of theseinclined tables 41 is a swiveled bearing 43 in which a spindle 44 isjournaled. rlhese sheets are inclined upward and carry at their upperends the grinding wheels 2Q.

The wheels may be attached to the spindles 44 in any suitable manner. Asshown, the grinding wheel 20 is secured to a head 45 which has a taperedsocket 46 which fits over a tapered end of the spindle 44 (as shown morefully i'n Fig. 4). ln this way the head 45 is held on the spindle byfriction and may be readily and easily detached and replaced whendesired.

rlhe grinding wheel may have its periphery formed in various manners butthat which is most preferred has a `i/shaped perimeter so as to providea cut of J cross section in the glass. rlhe inclined table 41 isprovided with two pins 47 and 48 between which the swiveled bearing 43may be shifted'.' l/Vhen it is in contact with the pin 47, as shown inFig. 2, the grinding wheel 20 is cutting a groove with one Obliquity.Wien, however, the swiveled bearing is shifted so as to be brought intoContact with the pin 48, then the grinding wheel will be grinding agroove having the opposite Obliquity, and this capacity for adjustmentis provided so that after cutting a plurality of grooves of oneobliquity a similar set of' grooves may be cut-withthe oppositeobliquity over the first mentioned grooves and in that manner provide aprimatic effect such as indicated in `the several Figs. 5, 6 and 7, orother design such as a herringbone effect. Whenever the swiveled bearing48 is thrown in contact with the pins 47 or 48, as the case may be,springs 49 on the swiveled bearing may snap over the opposite pin so asto hold the swiveled bearing in its adjusted position. This will enablea quick. adjustment to be made to the swiveled bearings wheneverdesired, but in doing so the hand wheel 9 should be rotated suliicientlyto move the blocks 5 sutiloiently far from the work holder that thegrinding wheels 20 may b'e swungy across the work without injurythereto, after which the said blocks are readjusted to their forwardcutting positions.

Above the cutting wheels 2G and above the work a water drip pipe maybearranged so as to slowly drop water upon Athe cutting tools .duringthe cutting operation, said pipe being indicated at 50. As it is notdesirable that vthe water, with the accumulated paste formed bythe-grinding, shall find its way down to the mechanism of the apparatus,l prefer to clamp between the Work holders 16 and the top of theplunger14 a cup shaped trough or plate 51 to receive. the waste water andcuttings and con- Vey `them away by the drain pipe 52. The

spindles 44 may-be rotated in any suitable manner, but as it isdesirable that they shall be readily adjusted by the swiveled head andalso by the adjustable block 5 it is desirable that they shall be drivenby exible shafts 53, said shafts terminating at their ends in thefriction wheels 54 having spindles journaled in pivoted bearings Theseveral friction wheels 54 are pressed in Contact with a rotating disk56 by means of the springs 57 which pull the spindle bearings downward.rIhe rotating disk 56 is secured to a shaft 58 which is journaled in theframe 59 upon which the spindle bearings 55 are hinged, and said shaft58 may be rotated by miter gears 60 and a power shaft 61; Any othersuitable arrangement for driving the flexible shaft 53 may be emj ployedin lieu of that here shown.

l have described lmy improved machine as a single machine which may beeasily and quickly adjusted by an operator without touching the glassarticle after it has once been placed in position, but it is manifest lthat a plurality of similar machines may be conveniently arranged uponthe same table 2 and the several hand wheels 9, 30 and ratchet lever 34may be simultaneously operated on any number of machines, and in thisway reduce the number of persons required for turning out any givenquantity of work, such assemblage of a plurality of machines form ing nopart of the present invention.

l have described my invention in a formA which l have found excellentlyadapted for the purposes for which it is intended, but I do not restrictor limit myself to the details herein described and illustrated as theparts may be greatly modified or varied without departing from theessential characteristics of the invention. Broadly considered theinvention comprehends means for adjusting the work and the cuttingtoolsrelatively to each other in. a circumferential direction about the workin an intermittent manner whereby a successive series of cuts may beproduced in the circumference of the article being cut, said relativeadjustment being accomplished by mechanical means in a definite andaccurate manner. The invention also comprehends broadly the capacity inan organized machine of shifting the oblique relation of the cutter inrespect to the article being cut so that cuts of opposite obliqutyHaving noW described my invention, what I claim as new and desire toprotect by Letters Patent is l. In a machine of `the character stated,the "combination of a head, a lurality of blocks adjustable in asubstantially radial direction upon said head, means for simultaneouslyadjusting the plurality vof blocks radially to and from each other, acentral support for an articleto be cut, means to impart a rotaryadjustment to the support for the article, a plurality of spindlesjourn'aled respectively upon the plurality` of blocks, means forrotating the spindles, and grinding wheels carried upon the ends of thespindles adjacent to the work supporting means. l

2. In a machine of the character stated, the combination of a head, aplurality ofblocks adjustable in a substantially radial direction uponsaid head, means for simultaneously adjusting the plurality ofvbloeksradially to and from each other, a central support for an article to becut, means to imparta rotary adjustment', to the support for thearticle, a plurality of spindles journaled respectively upon theplurality of blocks and arranged in a direction oblique to the axis ofthe support for the article bbth longitudinally and cirvcumferentially,means for rotating the spindles, grinding Wheels carried upon the endsof the spindles adjacent to theWork supporting means, and means forchanging the angle ofthe spindles upon their respective blocks to changethe angle of the cuts made by the Wheels upon the article.

3. In a machine of the character stated,

the combination of a head, a plurality ofv Y blocks adjustable in asubstantially radial direction upon said-head, means for simultaneouslyadjusting the plurality ofl blocks radially to and from each other, acentral supportfor an. article to be cut, means to imp art a rotaryadjustment tothe support for the article, a plurality of spindlesjournaled respectively upon the plurality of blocks, means for rotatingthe spindles, grinding Wheels carried upon the ends of thespindlesadjacent to the Work supporting means, and means to adjust thecentral supf porting means vertically in respect'to the Y, grindingWheels.

4f. In a machine of the character stated, the combination of a head, aplurality. of blocks adjustable in a .substantially radial directionupon said head, means for simultaneously adjusting the plurality ofblocks radially to and from each other, `a central vsupport for anarticle to be cut, means to impart a rotary adjustment to the supportfor the article, a plurality of spindles journaled respectively upon theplurality of blocks, 1 means for rotating the spindles, grinding Wheelscarried upon the ends of the spindles adjacent to the Work supportingmeans,

means for delivering Water simultaneously to the plurality of rindingWheels, and a trough below the rinding wheels having a 4 drainage tubeleadlng therefrom for conveying the collected Water to a distant place.

5. In a machine of' the character described, a head combined withcentral Work supporting means, separate mechanism' for adjusting thework supporting meansin a vertical directiongand also about a verticalaxis, la plurality of grinding Wheels arranged about the Work supportingmeans, a

plurality of spindles tor rctating the respective grinding wheels, meansfor rotating the spindles, and adjusting means for adjusting thespindles and their grinding wheels in a radial direction to or from thework holder.

and also substantially tangentially to thel circumference of said means,means for rotating the spindles, and adjusting means for adjusting t espindles and their grinding wheels in a radial direction to or from theWork holder While maintaining the tangential relation.

7. In a machine of the character stated, a head, combined with a rotarysleeve centrally arranged upon the.head, means to rotate the sleeve Witha step by step adjustment, a work holding plunger rotatable with thesleeve and adjustable longitudinally thereon, means for adjusting theplunger longitudinally inthe sleeve, a plurality of grindingWheels'arr'anged about the work holding means, a plurality of spindlesfor the grinding wheels, supports for the spindles carried by th'e headand radially movable thereon, and hand controlled means forsimultaneously adjusting the supports and their spindles and grinding'wheels to or fromV the Work holding means.

8. In a machine of the character stated, the combination of a head, witha work holder adjustable upon the head and having frictional means forholding the article to be cut, means for adjusting the work holder, a'plurality of substantially radially adjustable supports upon thehead,'comm on means for adjusting all of the supports slmultaneouslytoward or from each other, a' plurality of grinding wheels and theirspmdles respectively carried upon the supports and with said grinding,wheels adjustable tangentially with respect to the Work support, andmeans for rotating the spindles.

9. ln a machine of the character stated,

vthe combination of'a head, with a Work holder adjustable upon the headand having friotional means for holding the article to be out, means foradjusting the Work holder, a

plurality of substantially radially Aadjustl dable supports upon thehead, common means gentially with respect to the Work support, means foradjusting the spindles and their grinding Wheels to different Aanglesupon their supports to` bring the opposite diameters of the grindingWheels into cutting relation with the Work holder and the Work thereon,and means for rotating the spindles In testimonyl of Which invention, Ihereunto set my hand.

y JAMES sinora".

Witnesses:

R. M. HUNTER,

FLORENCE DEACON.

